package j08zhou;

public class J1 {
    public static void main1(String[] args) {
        int sum = 0;
        for (int i = 1; i <= 100; i++) {
            if(i%3!=0){
                sum += i;
            }
        }
        System.out.println(sum);
        //souv(sum);
    }

    public static void main(String[] args) {
        //NaN not a number
//        System.out.println(0.0/0.0);
//        System.out.println(0.0/0);
//        System.out.println(10.0/0);
//        System.out.println(10/0);
    }
}